September weather forecast
Baucau, East Timor

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Weather in September

As September sets in, the prolonged dry period gradually starts transitioning to the wet season once again. Baucau's weather in September, however, is typified by sun-drenched days marked by increased sunshine hours. The UV index is consistently high and requires careful safeguarding against excessive sun exposure. Sea temperatures return to their annual high, providing excellent conditions for water-based activities. Despite this returning trend towards the tropical monsoon climate, September remains essentially dry.

Temperature

September in Baucau, East Timor, welcomes an average high-temperature of a still moderately hot 29.4°C (84.9°F), not much different from the preceding month. Baucau sees an average low-temperature of 18.5°C (65.3°F) during September.

Heat index

In September, the average heat index is estimated at a hot 31°C (87.8°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

The least humid month is September, with an average relative humidity of 55%.

Rainfall

September is the month with the least rainfall, with 5mm (0.2") of accumulated precipitation.

Sea temperature

July through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 06:35 and sunset at 18:32. On the last day of September, in Baucau, sunrise is at 06:18 and sunset at 18:29 +09.

Sunshine

The average sunshine in September is 10h.

UV index

The months with the highest UV index are January through April, August through December, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 12 in September interprets into the following recommendations:
Adopt every precaution of necessity, unprotected skin and eyes may suffer burns instantly. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. A sunscreen with at least SPF 30 should be used liberally and reapplied frequently on cloudy days, especially after swimming or an outdoor workout. Warning! Sand and water reflections boost the intensity of UV exposure.

Frequently asked questions

How hot does it get in Baucau in September?

Baucau in September has an average high-temperature of 29.4°C (84.9°F) and an average low-temperature of 18.5°C (65.3°F). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 31°C (87.8°F).

What is the least humid month in Baucau?

With an average relative humidity of 55%, September is the least humid month in Baucau, East Timor.

What is the average humidity in September in Baucau?

In September, the average relative humidity in Baucau is 55%.

What is the driest month in Baucau?

September is the month with the least rainfall in Baucau, East Timor, with 5mm (0.2") of accumulated precipitation.

How much does it rain in Baucau in September?

During September, Baucau regularly aggregates up to 5mm (0.2") of precipitation.

When is the sea coldest in Baucau?

July through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.

What is the water temperature in September in Baucau?

In Baucau, the average seawater temperature in September is 27°C (80.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Baucau have in September?

The average day length in September in Baucau, East Timor, is 12h and 4min.

What time are sunrise and sunset in September in Baucau?

On the first day of September, sunrise is at 06:35 and sunset at 18:32. On the last day of the month, sunrise is at 06:18 and sunset at 18:29 +09.

How many hours of sunshine does Baucau have in September?

In September, the average sunshine duration in Baucau is 10h.

What is the month with the highest UV index in Baucau?

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index in Baucau.

What is the UV index reading in September in Baucau?

In September, the average daily maximum UV index in Baucau is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Baucau, East Timor

Average temperature in September - Baucau, East Timor
  • Average high temperature in September: 29.4°C

The warmest month (with the highest average high temperature) is November (30.2°C).
The month with the lowest average high temperature is February (27.3°C).

  • Average low temperature in September: 18.5°C

The month with the highest average low temperature is January (22°C).
The coldest month (with the lowest average low temperature) is October (17.8°C).

Average humidity in September
Baucau, East Timor

Average humidity in September - Baucau, East Timor
  • Average humidity in September: 55%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is September (55%).

Average rainfall in September
Baucau, East Timor

Average rainfall in September - Baucau, East Timor
  • Average rainfall in September: 4.8mm

The wettest month (with the highest rainfall) is February (220.7mm).
The driest month (with the least rainfall) is September (4.8mm).

Average rainfall days in September
Baucau, East Timor

Average rainfall days in September - Baucau, East Timor
  • Average rainfall days in September: 0 days

The month with the highest number of rainy days is January (20 days).
The month with the least rainy days is September (0 days).

Average sea temperature in September
Baucau, East Timor

Average sea temperature in September - Baucau, East Timor
  • Average sea temperature in September: 27°C

The best months for swimming (with the highest average sea temperature) are November and December (30°C).
The coldest months (with the lowest average sea temperature) are July, August and September (27°C).

Average daylight in September /
Average sunshine in September
Baucau, East Timor

Average daylight in September / Average sunshine in September - Baucau, East Timor
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).

  • Average sunshine in September: 10h and 0min

The months with the most sunshine are October and November (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average UV index in September
Baucau, East Timor

Average UV index in September - Baucau, East Timor
  • Average UV index in September: 12

The months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 10).

Baucau, East Timor

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